Writing instrument



FIG. 1 is a front elevational view of a writing instrument showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof with the cap portion removed;

FIG. 5 is a front elevational view of a modified form of the writing instrument with the cap portion removed to show a conventional nibbed-point;

FIG. 6 is a front elevational view thereof with the cap portion in place over the writing point;

FIG. 7 is a top plan view thereof; and

FIG. 8 is a bottom plan view thereof.

The opposite sides of the pen casings are as in the elevational views shown without the clips on the cap portions. 

The ornamental design for a writing instrument, as shown and described. 